There is also

and

Both by expede.

And a related talk by the author

Jose blogged about FP in elixir a while back.

FP is great, but it’s not the end goal, it’s a means to building concurrent and fault tolerant systems.

Putting all those stuff into the stdlib, would put a lot of a burden to the core team. Also all that typeclassopedia mumble coming along with ADTs (Functors, Applicatives, Monoids, Monads et al.) is scarying newcommers.

When I was in FP class, I’ve seen a lot of students that grasp the syntax of Haskell easily, but had hard trouble to understand everything beyond the differences between sum and producttypes.

Therefore I conclude that putting those tools into the stdlib as a mandatory tool would make it hard for newcomers to get into elixir, while putting them there as optional tools would put the burden of maintanance on the core team while users wont use them that much.